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Finding the Fourth Proportional to 424,659.80, 586,037.04 and 243,387.56

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Solution

The fourth proportional to 424,659.80, 586,037.04 and 243,387.56 is: 335,878.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,659.80 : 586,037.04 = 243,387.56 : x
  2. Step 2: Convert to fraction form
    424,659.80/586,037.04 = 243,387.56/x
  3. Step 3: Cross multiply
    424,659.80x = 586,037.04 × 243,387.56
  4. Step 4: Simplify right side
    424,659.80x = 142,634,125,235.22
  5. Step 5: Solve for x
    x = 142,634,125,235.22/424,659.80
  6. Step 6: Final answer
    x = 335,878.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.